Home / 1,154,705.64-1,731,615.66-396,405.78

Finding the Fourth Proportional to 1,154,705.64, 1,731,615.66 and 396,405.78

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Solution

The fourth proportional to 1,154,705.64, 1,731,615.66 and 396,405.78 is: 594,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,705.64 : 1,731,615.66 = 396,405.78 : x
  2. Step 2: Convert to fraction form
    1,154,705.64/1,731,615.66 = 396,405.78/x
  3. Step 3: Cross multiply
    1,154,705.64x = 1,731,615.66 × 396,405.78
  4. Step 4: Simplify right side
    1,154,705.64x = 686,422,456,362.52
  5. Step 5: Solve for x
    x = 686,422,456,362.52/1,154,705.64
  6. Step 6: Final answer
    x = 594,456.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.